Multiple-roll calender



May 27, 1924. 3,495,298

W. A. GORDON MULT I PLE ROLL C ALENDER Filed Au 4, 192:5 s Sheds-Sheet 1 iwzwme May 27' 1924.

v w. A. GORDON MULTIPLE ROLL CALENDER Filed Auz. 4.,

1923 s Sheets-Sheet. 2

May 27 1924.

' W. ATGORDON MULTIPLE ROLL CALBNDER Filed Aug. 4, 1923 3 Sheets-Sheet 3.

3 4 4 a w w lA/V/ 1 v Patented WILLIAM A. GORDQN, OF SHELTON, CONNECTICUT, ASSIGNOR T0 'BIRMINGHA'M IRON FOUNDRY, OF DERBY, CONNECTICUT, A CORPORATION OF CONNECTICUT.

MULTIPLE-ROLL cannunnn.

Application filed August 4, 1923. Serial No. 655,683.

To all whom it may concern:

Be it known that I, WILLIAM A. GORDON, a citizen of the United States, residing at Shelton, in the county of Fairfield and State of Connecticut, have invented a new and 'useful Improvement in Multiple-Roll Calenders, of which the following is a specification.

This invention relates to those calendering machines which have more than two calendering rolls in a stack. It is frequently desirable in such machines to be able to, without affecting the distance between them, raise or lower a plurality of the upper rolls with relation to the drive roll.

The object of the present invention is to so construct a multiple roll calender frame that two or more of the upper rolls may be easily and accurately adjusted as a unit with re spect to the roll or rolls beneath them in the stack, which rolls shall also be capable of independent adjustment with relation to each other.

The invention is illustrated "as embodied in a four roll calendering machine that is particularly designed for calendering rubber fabrics, having a sectional frame which is so adjustable that the two upper rolls carried by the top section are capable of adjustment as a unit with respect to the drive roll carried by the base section, as well as with respect to each other, while the bottom roll is also capable of adjustment with relation to the drive roll. The invention, however, is applicable to multiple roll calenders having more than four rolls in a stack and calenders which are used for other purposes than operating on rubber fabrics.

In t e accompanying drawings Figure 1 shows a front elevation'of the machine. Fig. 2 is a view of one side of the machine with the intermeshing gears removed from the ends of the rolls. Fig. 3 is a plan view.

Fig. 4 is a horizontal section on the plane indicated by the dotted line 4-4 on Fig. 2.

The frame of the machine is made in two horizontally separated sections, the base section 1 and the top section 2. These' sections of the frame are-hinged together at the back by pivot studs 3, and the bottom edges of Y the sides of the top section are provided with ment when the top section is turned on its pivots. The bottom roll 6 and the driving roll 7 are supported by the usual bearings mounted in the ordinary way in the base section of the frame, while the third roll 8 and the top roll 9 are supported by the usual bearings mounted in the ordinary way in the top section of the frame. The driving roll is provided with the driving gear 10 and the other rolls are driven in consonance therewith b the intermeshing gears 11 keyed to the rol s at each side of the frame.

At the front on each side near the top of the base section of the frame is a swinging nut 12. At the front on each side near the bottom of the top section of the frame is a swinging bearing 13. Screws 14 with their upper smooth ends fitted to turn but not move lengthwise in the bearings on the top section have their lower threaded ends engaged with the nuts on the base section. By turning these screws the top section of the frame may be swung on its pivot so as to carry the upper rolls which aremounted thereon as a unit toward or from the lower rolls mounted on the base section and thus adjust the space between the third roll and the driving roll without altering the spaces between the two lower rolls or the space between the two upper rolls.

Fastened to each of the adjusting screws is a worm wheel 15 and'meshing with each worm wheel is a worm 16 on an arbor 17. Loose on each arbor is a bevel gear 18 that is normally fastened to the arbor by a. clutch 19. Each of these bevel gears is engaged by a bevel gear 20 on the lower end of an approximately vertical shaft 21. The up per ends of these shafts are provided with bevel gears 22that engage with bevel gears 23 on the ends of a horizontal shaft 24 that is supported by bearings at the top and extends across the frame. The arbors 17 at one end are supported by brackets 25 mounted coaxially with the adjusting screws, 100

while at the other end the arbors are suported by brackets 26 that also suppflrrt .the lhwer ends of the vertical shafts. The upper ends of the vertical shafts are sup ported by brackets 27 that are mounted co 1105 when the top section of the frame is ad- 110 justed .with relation to the base section of the frame. Furthermore as the effective lengths of the vertical shafts vary according to the adjustment of the frame, provision is made whereby the shafts may telescope slightly in the hubs of the gears which they enter.

Turning the horizontal shaft, through the gearing and adjusting screws, will swing the front of the frame up or down according to the direction of rotation of the horizontal shaft and thus increase or decrease the distance of the third roll from the driving roll withoutaifecting the distance between the third roll and the top roll orthe distance bet-ween the bottom roll and the driving roll. If, due to lost motion, wear or any other cause, the rolls become slightly out of parallel, the defect can be corrected by releasing the clutch 19 on one side leaving in the clutch on the other side and operating the mechanism until the rolls are parallel, after which the clutches on both sides engaged the operating mechanism will cause the adjusting screws to raise or lower both sides alike.

As the top section of one of these machines weighs many thousand pounds, it is desirable to provide a power drive for rotating the horizontal shaft at the top of the machine and effecting the desired ad justment of the top section of the frame which carries the two upper rolls.

The bearings 36 for the top roll are made in the usual form and are adjustably mounted in the common manner in openings in the sides of the top section of the frame, being positioned vertically by spindles 37 that are threaded through the to of the frame in the well known way. On t e upper end of each of these spindles is a worm wheel 38. Each worm wheel is engaged by a worm 39 loosely mountedon but normally fastened by a clutch $0 to a shaft 41 that extends across the top of the machine. This a shaft has a gear 42 that is engaged by a "pinion 43 loosely mounted on but adapted to be fastened to the counter-shaft 32 by a cone friction clutch 4d. The clutch 3d and the clutch 4d are connected and arranged so that when one is enga the other will be disengaged, there 0 course being-a neutral point provided at which neither c utch is engaged. f the eluteh 3a rceaaee near one side in convenient position to bev grasped by the operator. The shifting mechanism is arranged so that only one adjustment can be effected at a time.

In the machine shown the bottom roll is adjusted by hand. The bearings 50 for the bottom roll are made in the usual form and are adjustably mounted in the common manner in openings in the sides of the base section of the frame, being positioned vertically by spindles 51 that are threaded through the bottom of the frame in the well known way. On the lower end of each of these spindles is a worm wheel 52. Each worm wheel is engaged by a worm 53 loosely mounted on but normally fastened by a clutch 54: to a shaft 55 that extends across the bottom of the machine. This shaft has a bevel gear 56 that is engaged by a bevel gear 57 on the lower end of a shaft 58 that extends up on one side and is connected by the usual gearing to a hand wheel 60. By

turning this hand wheel the bottom roll may be adjusted in the well known manner.

The invention claimed is Sill 1. A multiple roll calendering machine having a frame formed in horizontally divided sections, calendering rolls mounted on said frame sections, means hinging the frame sections together, mechanism for swinging one section of the frame-with 1 elation to the'other section of the frame for the purpose of adjusting as a unit the rolls mounted on that section, and mechanism for adjusting the rolls mounted on the swinging section independentlv of each other.

2. A multiple roll calendering machine having a frame formed in horizontally divided sections, calendering rolls mounted on said frame sections, means hinging the frame sections together, mechanism for swinging one section of the frame with relation to the other section of the frame for the purpose of adjusting as a unit the rolls mounted on that section, mechanism for adjusting the rolls mounted on the swinging section independently of each other, and power driven means adapted to be connected with either of said adjusting mechanisms.

3. A multiple roll calendering machine having aframe comprising a base section and a top section pivoted to the base section,

a'drive roll mounted on the base section, a 11th plurality of rolls mounted on the top section, mechanism for swinging the top section on the pivot and adjusting the rolls .section independently of each other.

4. A multiple roll calendering machine having a frame comprising a base section and a top section pivotedto the base section, a drive roll mounted on the base section, a plurality of rolls mounted on the top section, and mechanism for adjusting the rolls carried by the top section as a unit and also independently.

Y 5. A multiple roll calendering machine having a frame comprising a base section and a top section. pivoted to the base section, a drive roll mounted on the base section, a plurality of rolls mounted on the top section, mechanism for swinging the top section on the pivot and adjusting the rolls carried by the top section asa unit parallel with relation to the drive roll, and means" for connecting or disconnecting part of said mechanism whereby said rolls if out of parallel may be adjusted to parallel relation to the said drive roll.

6. A multiple roll calendering machine having a frame formed in. horizontally divided sections, oalendering rolls mounted on said frame sections, means hinging the frame sections together, mechanism for "swinging one section of the frame with relation to the other section of the frame for adjusting the rolls carried by the swinging section as a unit with relation to the rolls mounted on the fixed section, mechanism for adjusting the rolls carried b the swinging section independently of eac other, power operating means, and means whereby the power "operating means may be connected with the mechanism for swinging the frame and efiecting-the unitaryadjustmentof the rolls or connected'with the mechanism for effecting the independent adjustment of the rolls on the swinging section of the frame. 7. A multiple roll calendering machine having a frame formed in horizontally divided sections, calendering rollsmounted on said frame sections, means hinging the frame sections together, mechanism for swinging one section of the frame with relation to the other section of the frame for. ad usting the rolls carried by the swinging section as a unit with relation to the rolls mounted on the fixed section, mechanism foradjusting the rolls carried by the swing-' ing section independently of each other, 7

power operatino means, and means whereby the power operating means may be connect'ed with the mechanism for swinging the frame and effecting the unitary adjustment or connected with the mechanism for effecting the independent adjustmentof the rolls, said power operating means, adjusting mechanism. and connecting meansbe ing mountedon the swinging'scction of the frame.

8. A inultiple roll calcndering machine having a frame comprising a base section and a top section pivoted to the base section, a drive roll mounted on the base section, a plurality of rolls mounted. on the top section, adjusting screws for swinging the top section on its pivot, and mechanism mounted on the swinging section of the frame for turning said adjusting screws.

, 9. A multiple roll calendering machine havinga frame comprising a base section:

and a top section pivoted to the base section, a drive roll mounted on the base sectlon, a plurality of rolls mounted on the top section,.- adjusting screws for swinging the top' section on its pivot and adjusting the rolls carried therebv as a unit, adjusting screws for adjusting the rolls carried by the top section independently f each other, and

mechanism mounted on the swinging sec- -tion of the frame and adapted to turn the unitary adjusting screws or the independent adjusting screws.

-. 10. A multiple roll calendering machine having a frame formed in'horizontally divided sections hinged-together, a pair of calender, rolls mounted on each frame section, screws for adjusting one section of the frame and the rolls carried thereby as a unit with relation to the other sectionof the frame and the rolls carried thereby, screws for adjusting the rolls carried by the swinging section independently of each other, screws for adjusting the rolls carried by the fixed section independently of each other, and mechanism for turning the several aldjusting screws and effecting the unitary ad-- justment or the independent adjustment of the i'olls as required.

WILLIAM A. GORDON. 

